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Learning objects Cubirocks go!

TLF ID L160

Help three cuboid characters estimate and compare the volumes of cube-shaped rocks made by a special volcano in 'Cubiland'. Each character uses a different measuring unit: small, medium-sized or large. Notice that if 8 medium cubes and 27 small cubes fill a large cube that this ratio can be applied to all 'cubirocks'. Use a measuring cube to help estimate the volume of different 'cubirocks' made up of cubes. Volumes range from 1 unit up to 162 units (3x3x3x6). Notice that the volume of a cube stays the same when its parts are rearranged. This learning object is one in a series of three objects.



Educational details

Key learning objectives
  • Students use ratios to estimate the volume of solids made up of cubes.
  • Students explore relationships between unit size and volume.
Educational value
  • This resource is useful for the Australian Curriculum content description in year 4 mathematics about calculating and comparing volumes of three-dimensional shapes using informal units.
  • It may also be relevant to applying ratios to solve problems at year 7 and to recognising and using multiples at year 5.
Year level

4; 5; 6; 7

Learning area
  • mathematics
Strand
  • Mathematics/Number and algebra
  • Mathematics/Measurement and geometry
    Concept
    • Mathematics/Volume (Measurement)
    • Mathematics/Estimating (Mathematics)

    Other details

    Contributors
    • Technical implementer
    • Subject matter expert
    • Publisher
    • Date of contribution: 20 Sep 2013
    • Organisation: Education Services Australia
    • Address: Melbourne VIC 3000 Australia
    • URL: http://www.esa.edu.au/
    Access profile
    • Colour independence
    • Device independence
    • Hearing independence
    • Generic
    Learning resource type
    • Interactive Resource
    Browsers
    • Microsoft Internet Explorer - minimum version: 8.0 (MS-Windows) - maximum version: 9.0 (MS-Windows)
    • Firefox - minimum version: (MS-Windows)
    • Safari - minimum version: 5.1 (MacOS) 
    Operating systems
    • MacOS - minimum version: 10.6
    • MS-Windows - minimum version: XP - maximum version: 7
    Rights
    • © Education Services Australia Ltd, 2013, except where indicated under Acknowledgements.